Closure for churns



(No Model.)

J. MODERMAID.

CLOSURE FOR GHURNS.

No. 399,681. I Patented Mar. 19, 1889.

l l'l Mai/265565 [rm/725071 shown in the foregoing views.

llirnn Starts Parent tries.

JOHN MGDERMAID, OF ROCKFORD, ILLINOIS.

crosuan FOR CHU-RNS.

SPECIFICATION forming part of Letters Patent No. 399,681, dated. March19, 1889.

Application filed Zannary 23, 1889. Serial No. 297,322. (No model.)

To (.tZZ whom) it may concern: Be it known that I, JOHN MGDERMAID,citizen of the United States, residing at Rockford, in the county ofVinnebago and State of Illinois, have invented a certain new and usefulImprovement in Closures for Churns,

of which the following is a specification.

This invention relates to an improved means of securing closures tochurns; and it consists of certain new and useful. constructions andcombinations of parts hereinafter described, and pointed out in theclaim.

Referring to the accompanying drawings, which form a part of thisspecification, Figure 1 is a plan view of a churn provided with myimprovement. Fig. 2 is a view of a vertical section of the same throughthe dotted line so 00 of Fig. 1. Fig. 3 is an isometric view of aportion of the churn-cover fastening Fig. an isometric view in detail ofa fragment of the ring-head having a cover-guide lug projecting from itsupper side. Fig. 5 is an isometric view of a cover-retaining lug.

Like letters of reference indicate corresponding parts throughout theseveral views.

A is a churn. A is a ring-head seated in the croze A therein.

A are cover-guide lugs projecting from the upper side of the ring-head Aalong the chine of the churn A.

A is an annular bead projecting from the upper side of the ring-head A.

B represents cover-retaining lugs projecting above the top of the churnA, whereto they are secured by means of spurs B, which enter the outsideof the churn-staves, and bolts (not shown) passed through the boltholesB therein and the staves of the churn.

C is a disk-head forming the basis of the churn-cover and having avertical bolt-hole, C, through the center thereof.

O is a metallic casing inclosing the periphery and upper peripheralangle of the diskhead 0.

C is a transverse strengthening-brace integral with the casing C andextending across the center of the disk-head O.

C is a vertical stud, also integral with the brace 0 and having acylindrical passage, 0 extending longitudinally therethrough.

C is a ring of cork set into the disk-head C to engage with the annularbead A and forms a tight joint therewith.

D represents bails for securing the cover to the ring-head A, mounted inthe cover-retaining lugs B by inserting the ends of the former throughthe holes in the latter. These bails may be swung outward and inward, asindicated by the dotted lines a of Fig. 1, according as it is desired toopen or close the churn.

E is a bolt passed through the openings 0 in the disk-head and verticalstud, and is secured in position by means of the set-nut E.

F is a fulcrum having a threaded passage, F, extending verticallytherethrough to adapt it to engage with the threaded portion of the boltE to form a vertical and adj ustable swiveljoint therewith for theformer to revolve upon.

G is a lever-cam consisting of the cam G, pivoted to the swiveledfulcrum F by means of the horizontal pivot G and openings G in the camG, and the lever G integral therewith, for operating the same. The cam Gis divided by a horizontal cleft, G therein,which admits the fulcrum F,whereto it is pivoted, and embraces the set-nut E, thereby preventingsaid nut from working loose and serving as a wrench to remove andreplace the same when desired.

G is a cork stop inserted into a suitable socket on the under side ofthe lever G to prevent the latter from marring the disk-head C. To takeup the slack between the bails and cam or the wear of any of the partscomposing the fastening mechanism, elevate the lever to a verticalposition and revolve it and the fulcrum whereto it is swiveled upon thebolt E, as indicated by the dotted circle m in Fig. 1, until the slackor wear is taken up.

The cover-guide lugs A will be found to be highly useful for guiding thecover onto the churn in such a manner that only the middle portion ofthe lower surface of the ring of the cork O can come in contact with theannular bead A of the ring-head A, as a liquid-tight joint between thecover and churn is thereby positively assureda condition attained withdiificulty when the ring of cork is placed upon the bead of thering-head in such a manner 7 as not to be concentric therewith.

I claim the chine-ring, and suitable fastenings for re- In combination,a churn having oover-retaining said cover thereon, substantially astaining' lugs secured to the outside of and prodescribed, and for thepurpose specified.

jecting above the chine of the same, a ring- JOHN MCDERMAID. 5 head setinto the chine thereof and having Witnesses:

cover-guide lugs extending from the top of CHARLES T. LAWRENCE,

the latter along said chine, a cover fitted to L. L. MORRISON.

